CN105591265A - Overhead conductor clamp pressing simulation method - Google Patents
Overhead conductor clamp pressing simulation method Download PDFInfo
- Publication number
- CN105591265A CN105591265A CN201610147638.7A CN201610147638A CN105591265A CN 105591265 A CN105591265 A CN 105591265A CN 201610147638 A CN201610147638 A CN 201610147638A CN 105591265 A CN105591265 A CN 105591265A
- Authority
- CN
- China
- Prior art keywords
- splicing sleeve
- wire
- pressed
- pincers
- crimping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R43/00—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors
- H01R43/04—Apparatus or processes specially adapted for manufacturing, assembling, maintaining, or repairing of line connectors or current collectors or for joining electric conductors for forming connections by deformation, e.g. crimping tool
- H01R43/048—Crimping apparatus or processes
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Electrical Connectors (AREA)
Abstract
The invention discloses an overhead conductor clamp pressing simulation method, and belongs to the technical field of the conductor connection. The overhead conductor clamp pressing simulation method includes the following steps of: work preparation, conductor cutting, conduit cleaning, marking, splicing sleeve crossing, pressing joint operation, anticorrosion treatment, and quality inspection. Insulating layers and oxide films on the conductor surfaces are removed. The head ends of the conductors are bound. An inner wall of a splicing sleeve and the conductors are washed. After the inner wall of the splicing sleeve and the conducts are dry, connection parts of the conductors and a contact surface of the splicing sleeve are coated with a layer of conductive paste. During the pressing joint operation, a pressing joint clamp is used to perform the pressing joint on the splicing sleeve in order. The pressing joint order is that the clamp pressing is finished up and down alternatively from the middle part of the splicing sleeve to one end of the splicing sleeve in turn, and then the clamp pressing is finished up and down alternatively from the middle part of the splicing sleeve to the other end of the splicing sleeve. The overhead conductor clamp pressing simulation method provides a simulation training method for the skill training teaching, and avoids non-standard phenomenon of operation because the training methods are not unified.
Description
Technical field
The present invention relates to wire interconnection technique field, specifically a kind of aerial condutor pincers are pressed emulation mode.
Background technology
It is at aluminium hydraulic pressed connecting pipe surface indent that aerial condutor forcipressure connects, and wire is occured bending and deformation in aluminium hydraulic pressed connecting pipe, so wireAnd between tube wall, wire and wire, produce contact resistance, thereby reach the object that wire connects.
Because forcipressure is subject to the impact of crimping machinery and indent, make holding after crimping put forth effort to be restricted, the machinery after crimping is strongIt is low that degree connects than hydraulic method, and therefore, forcipressure only limits to cross section 240 square millimeters and following aluminum stranded conductor, steel-core-aluminium strandThe connection of line, the insulated conductor of small bore also can adopt pincers to press connection.
The wire outward appearance that forcipressure connects is the indent that is deformed into certain intervals after every mold pressing.
The connected mode of conductor compression jointing has overlap joint and two kinds of forms of docking, and overlap joint is mainly used in the pincers of wire and presses connection, the shape of dockingFormula is mainly used in the hydraulic connecting of wire.
The joint form of wire refers to that wire interconnecting piece divides and has type of attachment overlapping, that wire does not overlap with aluminium hydraulic pressed connecting pipe axis,In skill teaching training, do not have unified aerial condutor pincers to press simulation training method, cause aerial condutor pincers press operation method to lackSpecification, is unfavorable for that work about electric power advances safely.
Summary of the invention
For the problems referred to above, the object of the present invention is to provide a kind of aerial condutor pincers to press emulation mode, the method is for wire clampThe skills training of pressing, Technique Authentication and the practical operation of pressing for wire clamp lay a good foundation.
The present invention solves the technical scheme that its technical problem takes: a kind of aerial condutor pincers are pressed emulation mode, comprise following stepRapid:
Step (1): Job readiness: carry out dressing and dress preparation, material selection and Work tool inspection.
Step (2): cut out line: cut two for clamping the wire of press operation.
Step (3): pipeline cleans: remove insulating barrier and the oxide-film of described conductive line surfaces, the head end of described wire is tied upPrick, the inwall to splicing sleeve and described wire clean, after drying in coupling part and described splicing sleeve and the institute of described wireState on the contact-making surface of wire and be coated with one deck conductive paste.
Step (4): print: after pipeline cleans, according to pressing mouthful number and pincers to press the requirement of spot size on the surface of described splicing sleeveCarrying out the crimping marking with the pen that prints also numbers; The difficult point printing is draw toward two ends or draw this method from two ends toward middle from middleWhat introduce is to draw toward the other end from one end, only has this stroke of method could be the error minimum causing due to material and human factor. ConnectThe end length in reserve of the pressure mouth on continuous pipe top is a2, and the end length in reserve of the pressure mouth of splicing sleeve bottom is a3, a2 < a3, positionCentre-to-centre spacing in the adjacent pressure mouth of splicing sleeve the same side is a1, and concrete operation method is: with the end distance of splicing sleeve be a2Position mark the first end marking, be then imprinted as benchmark with described first end, print successively every the distance of a1, untilComplete printing of requirement; Then by described splicing sleeve around axis Rotate 180 °, still start from same one end of splicing sleeve drawPrint, marking the second end marking with the end distance of splicing sleeve for the position of a3, be then imprinted as benchmark with described the second end,Distance every a1 prints successively, until complete printing of requirement.
Step (5): poling: the end of two wires that will connect penetrates described splicing sleeve from the two ends of described splicing sleeve respectively,Described wire stretches out from the other end of described splicing sleeve through after described splicing sleeve, then between two wires, inserts lead-in;The main points of poling are " short in short, long to length ", due to a2 < a3, so, the shorter wire position of length of stretching out splicing sleeveIn the residing side of a2, stretch out the wire that the length of splicing sleeve grows and be positioned at the residing side of a3.
Step (6): crimping operation: according to the numbering of the crimping marking in described step (4), adopt Press Plier at described splicing sleeveOn carry out in order crimping, crimping order, for from the middle part of described splicing sleeve, is handed over to one end of described splicing sleeve successively up and downAfter having pressed for pincers, then press to the other end alternatively up and down pincers of described splicing sleeve from the middle part of described splicing sleeve.
Step (7): preservative treatment: the two ends at described splicing sleeve are coated with rust-proof anti-corrosive paint.
Step (8): quality examination: carry out the inspection of visual examination, pressure mouthful number and the rear size of pressure.
In step (1), dressing is dressed and is prepared to comprise and wear work clothes, wear insulated shoes, wear a safety helmet and wear cotton gloves; Selection meetsThe material of instructions for use and Work tool, get the raw materials ready fully, and Work tool is complete. Main material has: wire, lead-in, adhesive tape, vapourOil (93#), cotton yarn, splicing sleeve, conductive paste and rust-proof anti-corrosive paint, conductive paste can adopt neutral vaseline, and antirust, anti-corrosive is coated withMaterial can adopt red lead powder oil. Work tool mainly comprises: Press Plier, bolt clipper, wire brush, fine sandpaper, slide measure, coil of stripChi, wooden mallet and the pen etc. that prints. The specification that checks splicing sleeve model and wire matches, and splicing sleeve has or not distortion and crackle, connectsWhether the length of continuous pipe conforms with the regulations, and checks that whether the mechanical part of Press Plier is normal, and pressing mold model and the splicing sleeve of Press Plier areNo coupling.
In step (2), the cut-off part of described wire is polished smooth to processing with fine sandpaper or flat file.
Clean for ensureing the oxide-film removing of conductive line surfaces, in step (3), use wire brush and fine sandpaper removing conductive line surfacesOxide-film, the use order of wire brush and fine sandpaper is for first using wire brush, rear use fine sandpaper, wire has strand direction processed,The user of wire brush and fine sandpaper is to being along wire external layer strand direction processed.
In step (3), the head end of described wire uses adhesive tape to carry out colligation. Use adhesive tape to carry out colligation, compared with traditional useIron wire carries out colligation, faster and more convenient operation, and colligation better effects if, security are better.
In step (3), use cotton yarn group to dip in gasoline wire is cleaned, the length of cleaning is 2 times that wire interconnecting piece divides,Namely 2 of wire lap times.
Reliable for ensureing after crimping that two wires connect, in step (5), described wire through after described splicing sleeve from describedThe length that the other end of splicing sleeve stretches out is not less than 20mm.
In step (5), the cross section of described lead-in is rectangle. Because the cross section of wire is rounded, two wires directly connectWhile touching, its contact-making surface can be very little, inserts the rectangular lead-in of cross section between two wires, and the contact-making surface of wire and lead-in increasesBe conducive to strengthen the fastness of connecting position of wires greatly.
During for guarantee crimping, each pressing mold place sizing is stablized, and in step (6), each mold pressing connects and keeps the time of pressure to be not less than30 seconds.
In step (6), the horn mouth of described splicing sleeve amputates or filing, and processes round and smooth; The overlap, the hair that after crimping, occurThorn and corner angle carry out filing and use coated abrasive working. Do not exceed the damage of allowed band for splicing sleeve surface, answer filing yet and use sandPaper polishing.
In step (8), while carrying out measuring external appearance size, service precision is not less than the vernier caliper measurement of 0.1mm; After crimping, connectThe flexibility of continuous pipe is not more than 2%. While carrying out quality examination, the key technical indexes that pincers pressure connects requires to comprise presses after mouthful number and pressureSize, when visual examination, the outward appearance of the splicing sleeve after crimping has not allowed crackle, and surface should be smooth, as splicing sleeve bending,Use wooden mallet straightening; Pressure pipe is bending excessive or have a crimping again of crackle.
The invention has the beneficial effects as follows: a kind of skills training method is provided, strong operability, easy to implement, be conducive to wireThe method of operating that pincers are pressed is carried out specification, and Technique Authentication and the practical operation of pressing for wire clamp lay a good foundation, and are beneficial to electric power workThe safety of doing advances.
Brief description of the drawings
Fig. 1 is the operational flowchart of the embodiment of the present invention;
Fig. 2 is the object construction schematic diagram of LGJ-35 conductor compression jointing after completing in the embodiment of the present invention.
In figure: 1～14-presses mouthful order and a position, 15 first wires, 16 second wires, 17 lead-ins, 18 adhesive tapes, 19 continuePipe.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, the invention will be further described, in the present embodiment with LGJ-35 wireFor example describes:
As shown in Figure 1, a kind of aerial condutor pincers are pressed emulation mode, comprise the following steps:
Step (1): Job readiness: carry out dressing and dress preparation, material selection and Work tool inspection. Dressing is dressed and is prepared to compriseWear work clothes, wear insulated shoes, wear a safety helmet and wear cotton gloves; Selection meets material and the Work tool of instructions for use, gets the raw materials ready fully,Work tool is complete. Main material has: wire, lead-in, adhesive tape, gasoline (93#), cotton yarn, splicing sleeve, conductive paste and anti-Rust anticorrosive paint, conductive paste can adopt neutral vaseline, and rust-proof anti-corrosive paint can adopt red lead powder oil. Work tool mainly comprises:Press Plier, bolt clipper, wire brush, fine sandpaper, slide measure, steel tape, wooden mallet and the pen etc. that prints. Check the cast that continuesNumber match with the specification of wire, splicing sleeve has or not distortion and crackle, and whether the length of splicing sleeve conforms with the regulations, and checks Press PlierMechanical part whether normal, whether the pressing mold model of Press Plier mates with splicing sleeve.
Step (2): cut out line: cut two for clamping the wire of press operation. Two wires are respectively the first wire 15 and second and leadLine 16, polishes smooth processing by the cut-off part of described wire with fine sandpaper or flat file.
Step (3): pipeline clean: peel off wire and enter the insulating barrier of the part of splicing sleeve 19, should note stripping insulation layer time notCan damage core, remove the oxide-film on surface, wire interconnecting piece position with wire brush and fine sandpaper, while removing oxide-film, first use steelSilk brush, re-uses fine sandpaper, and order can not be put upside down, and wire has strand direction processed, should carry out clearly along wire external layer strand direction processedWash; The head end of wire (relative with tail end, first to enter one end of splicing sleeve 19) is carried out to colligation with adhesive tape 18, in caseOnly wire termination is loose; Wire interconnecting piece is divided to the length of twice, dip in gasoline with cotton yarn group and respectively the first wire 15 and second is ledLine 16 cleans, and same method is cleaned the inwall of splicing sleeve 19, after cleaning and drying, in the company of described wireConnect partly and on the aluminium matter contact-making surface of described splicing sleeve 19 and be coated with one deck conductive paste.
Step (4): print: according to pressing mouthful number and pincers to press the requirement of spot size, according to the size of table 1 at described splicing sleeveThe crimping marking numbering are carried out with the pen that prints in surface, and after pressing in the order of numbering and table 1, dimension D, pincers are pressed spot size a1, a2With a3 all as shown in Figure 2.
Size table after table 1LGJ-35 wire pressure mouthful number and pressure
The difficult point printing is to draw toward two ends or draw from two ends toward middle from middle, this method introduction be to draw toward the other end from one end,Only have this stroke of method could be the error minimum causing due to material and human factor. According to table 1, taking Fig. 2 as example, first draw a2Distance, the distance of then drawing successively 6 a1, then, at the opposite side of splicing sleeve, still from this one end, first draws the distance of a3From, the distance of then drawing successively 6 a1.
Step (5): poling: the first wire 15 is penetrated to splicing sleeve 19 from the left end of splicing sleeve 19, by the second wire 16 fromThe right-hand member of splicing sleeve 19 penetrates splicing sleeve 19, and wire is through stretching from the other end of described splicing sleeve 19 after described splicing sleeve 19Go out, the part that wire stretches out splicing sleeve 19 outsides is not less than 20mm, then between two wires, inserts lead-in 17. PolingMain points: " short in short, long to length ", as Fig. 2, the first wire 15 stretches out the corresponding a2 in one end of splicing sleeve 19, the second wire exactly16 corresponding a3.
Step (6): crimping operation: according to the numbering of the crimping marking in described step (4), adopt Press Plier at described splicing sleeveOn carry out in order crimping, pincers press connect time must in strict accordance with operational procedure require carry out. Crimping order is as in Fig. 2 1～14Shown in, crimping order, for from the middle part of described splicing sleeve 19, is pressed to one end alternatively up and down pincers of described splicing sleeve 19 successivelyAfter completing, then press to the other end alternatively up and down pincers of described splicing sleeve 19 from the middle part of described splicing sleeve 19. From middle part to two endsCrimping mode can extrude the air in splicing sleeve 19, ensure the reliability of crimping. While operation, the loudspeaker of splicing sleeve 19Mouth amputates or filing, and processes round and smooth; When crimping, each mold pressing connects to shape and within 30 seconds, carries out the crimping of next mould afterwards again, pressesThe overlap, burr and the corner angle that connect rear appearance carry out filing and use coated abrasive working. Do not exceed allowed band for splicing sleeve 19 surfacesDamage, also answers filing and uses coated abrasive working.
Step (7): preservative treatment: the two ends at described splicing sleeve are coated with red lead powder oil, to strengthen the antiseptic power of terminal.
Step (8): quality examination: carry out the inspection of visual examination, pressure mouthful number and the rear size of pressure. Pincers are pressed the major technique connectingIndex request comprises presses mouthful number and the rear size of pressure, presses mouthful number and presses rear size should meet the regulation of table 1; When visual examination, crimpingAfter the outward appearance of splicing sleeve do not allowed crackle, surface should be smooth, as splicing sleeve 19 bendings, uses wooden mallet straightening, after straighteningSplicing sleeve 15 forbids there is crackle; Pressure pipe is bending excessive or have a crimping again of crackle. While carrying out measuring external appearance size, use essenceDegree is not less than the vernier caliper measurement of 0.1mm; After crimping, the flexibility of splicing sleeve 19 is not more than 2%.
After quality examination, the qualified product number of manual labour, then EO behind site clearing; If underproof product is wantedCarry out ftercompction or cut off the processing such as reclosing, product is after subsequent treatment is qualified, and the number of manual labour, then behind site clearingEO.
The foregoing is only preferred embodiment of the present invention, is not whole embodiment of the present invention, not in order to limit thisBright, within the spirit and principles in the present invention all, any amendment of doing, be equal to replacement, improvement etc., all should be included in thisWithin bright protection domain.
Except technical characterictic described in description, all the other technical characterictics are those skilled in the art's known technology.
Claims (10)
1. aerial condutor pincers are pressed an emulation mode, it is characterized in that, comprise the following steps:
Step (1): Job readiness: carry out dressing and dress preparation, material selection and Work tool inspection;
Step (2): cut out line: cut two for clamping the wire of press operation;
Step (3): pipeline cleans: remove insulating barrier and the oxide-film of described conductive line surfaces, the head end of described wire is tied upPrick, the inwall to splicing sleeve and described wire clean, after drying in coupling part and described splicing sleeve and the institute of described wireState on the contact-making surface of wire and be coated with one deck conductive paste;
Step (4): print: according to pressing mouthful number and pincers to press the requirement of spot size to carry out at the surface of the described splicing sleeve pen that printsThe crimping marking numbering, the crimping marking of described splicing sleeve both sides is from one end of splicing sleeve and marks successively to the other end;
Step (5): poling: the end of two wires that will connect penetrates described splicing sleeve from the two ends of described splicing sleeve respectively,Described wire stretches out from the other end of described splicing sleeve through after described splicing sleeve, then between two wires, inserts lead-in;
Step (6): crimping operation: according to the numbering of the crimping marking in described step (4), adopt Press Plier at described splicing sleeveOn carry out in order crimping, crimping order, for from the middle part of described splicing sleeve, is handed over to one end of described splicing sleeve successively up and downAfter having pressed for pincers, then press to the other end alternatively up and down pincers of described splicing sleeve from the middle part of described splicing sleeve;
Step (7): preservative treatment: the two ends at described splicing sleeve are coated with rust-proof anti-corrosive paint;
Step (8): quality examination: carry out the inspection of visual examination, pressure mouthful number and the rear size of pressure.
2. a kind of aerial condutor pincers according to claim 1 are pressed emulation mode, it is characterized in that, in step (2), by instituteCut-off part fine sandpaper or the flat file of stating wire polish smooth processing.
3. a kind of aerial condutor pincers according to claim 1 are pressed emulation mode, it is characterized in that, in step (3), useWire brush and fine sandpaper are removed the oxide-film of conductive line surfaces, and the use order of wire brush and fine sandpaper is for first using wire brush, after makeWith fine sandpaper, the user of wire brush and fine sandpaper is to being along wire external layer strand direction processed.
4. a kind of aerial condutor pincers according to claim 1 are pressed emulation mode, it is characterized in that, and in step (3), described inThe head end of wire uses adhesive tape to carry out colligation.
5. a kind of aerial condutor pincers according to claim 1 are pressed emulation mode, it is characterized in that, in step (3), useCotton yarn group dips in gasoline wire is cleaned, and the length of cleaning is the length of wire interconnecting piece point twice.
6. a kind of aerial condutor pincers according to claim 1 are pressed emulation mode, it is characterized in that, and in step (5), described inWire is not less than 20mm through the length of stretching out from the other end of described splicing sleeve after described splicing sleeve.
7. a kind of aerial condutor pincers according to claim 1 are pressed emulation mode, it is characterized in that, in step (5), stretch outThe shorter wire of length of splicing sleeve is positioned at the shorter side of end length in reserve of pressing mouth, stretches out long the leading of length of splicing sleeveLine is positioned at the long side of end length in reserve of pressing mouth.
8. a kind of aerial condutor pincers according to claim 1 are pressed emulation mode, it is characterized in that, and in step (6), eachMold pressing connects and keeps the time of pressure to be not less than 30 seconds.
9. a kind of aerial condutor pincers according to claim 1 are pressed emulation mode, it is characterized in that, and in step (6), described inThe horn mouth of splicing sleeve amputates or filing, and processes round and smooth; Overlap, burr and the corner angle that occur after crimping carry out filing and useCoated abrasive working.
10. a kind of aerial condutor pincers according to claim 1 are pressed emulation mode, it is characterized in that, in step (8), carry outWhen measuring external appearance size, service precision is not less than the vernier caliper measurement of 0.1mm; After crimping, the flexibility of splicing sleeve is not more than 2%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147638.7A CN105591265A (en) | 2016-03-15 | 2016-03-15 | Overhead conductor clamp pressing simulation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610147638.7A CN105591265A (en) | 2016-03-15 | 2016-03-15 | Overhead conductor clamp pressing simulation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105591265A true CN105591265A (en) | 2016-05-18 |
Family
ID=55930616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610147638.7A Pending CN105591265A (en) | 2016-03-15 | 2016-03-15 | Overhead conductor clamp pressing simulation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105591265A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107248684A (en) * | 2017-06-01 | 2017-10-13 | 芜湖侨云友星电气工业有限公司 | A kind of compression joint technique of automotive high voltage line beam |
| CN109449713A (en) * | 2018-10-23 | 2019-03-08 | 胡林斌 | A kind of industry power lug mode of connection |
-
2016
- 2016-03-15 CN CN201610147638.7A patent/CN105591265A/en active Pending
Non-Patent Citations (2)
| Title |
|---|
| 方大千: "《装修装饰电工常用公式数据手册》", 30 June 2007 * |
| 熊卿府: "《配电线路运行及检修》", 30 June 2005 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107248684A (en) * | 2017-06-01 | 2017-10-13 | 芜湖侨云友星电气工业有限公司 | A kind of compression joint technique of automotive high voltage line beam |
| CN109449713A (en) * | 2018-10-23 | 2019-03-08 | 胡林斌 | A kind of industry power lug mode of connection |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109309359A (en) | A kind of carbon fiber composite core wire construction method | |
| CN105591265A (en) | Overhead conductor clamp pressing simulation method | |
| CN104617516A (en) | Construction process for reversely pressing strain clamp of carbon fiber conductor | |
| CN104065002A (en) | Wire stripper for suspended insulated wire | |
| CN205488982U (en) | Cable core alignment pincers | |
| CN207572872U (en) | A kind of cable peeling device | |
| CN111740355A (en) | High-voltage cable joint repairing method | |
| CN104577625B (en) | Make the method that pincers carry out Network Cable Connector making using Network Cable Connector | |
| CN204190267U (en) | A kind of stay wire making tool | |
| CN202602184U (en) | Special clamp for secondary wire connecting | |
| CN105895265A (en) | High-voltage cable terminal processing process | |
| CN214314286U (en) | Cable connector device of skinning for communication cable | |
| CN207732399U (en) | Become platform lead fixture | |
| CN204732652U (en) | Line network cable pliers is smoothed out with the fingers in peeling | |
| CN207900089U (en) | A kind of bending line tweezer | |
| CN208033516U (en) | Secondary connection bending fixture | |
| CN207602962U (en) | A kind of Crimping Pliers | |
| CN210442551U (en) | Multifunctional optical cable wire stripper with stripping, shearing and breaking functions | |
| CN208896075U (en) | A kind of positioning line tool | |
| CN202895038U (en) | Novel insulated nipper pliers | |
| CN206451962U (en) | A kind of portable multifunctional network cable pliers | |
| TWM275072U (en) | Improved combination pliers structure | |
| CN210273306U (en) | Multifunctional wiring clamp for electric power engineering | |
| CN205021449U (en) | Multipurpose pliers | |
| CN220196192U (en) | Multifunctional folding line pliers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160518 |